Measurement and Instrumentation Standard resistor ia made from Nichrome Platinum Manganin Silver Nichrome Platinum Manganin Silver ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken From a battery From a source which is not the same as the unknown voltage Any of the above From the same source as the unknown voltage From a battery From a source which is not the same as the unknown voltage Any of the above From the same source as the unknown voltage ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation Consider the following statement - 1. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the current coil. 2. The compensating coil of a low power factor wattmeter compensates the effect of the impedance of the voltage coil circuit. Both 1 and 2 are false. 1 is true but 2 is false. 1 is false but 2 is true. Both 1 and 2 are true. Both 1 and 2 are false. 1 is true but 2 is false. 1 is false but 2 is true. Both 1 and 2 are true. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The coil of a moving coil meter has 100 turns, is 40 mm long and 30 mm wide. The control torque is 240×10-6 N-m on full scale. If magnetic flux density is 1Wb/m2 range of meter is 4 mA. 1 mA. 3 mA. 2 mA. 4 mA. 1 mA. 3 mA. 2 mA. ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation An oscilloscope indicates Average value DC value of voltage RMS value Peak to peak value of voltage Average value DC value of voltage RMS value Peak to peak value of voltage ANSWER DOWNLOAD EXAMIANS APP
Measurement and Instrumentation The inductance of a certain moving iron ammeter is expressed as L = 2+5θ-θ2 µH. The control spring torque is 2 × 10-6 Nm/radian. Find the deflection in radians for a current of 2A. 1 2 4 5 1 2 4 5 ANSWER DOWNLOAD EXAMIANS APP
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